Indicator



2 Sheets-Sheet l v nl,

March 19, E935., A. G, wim-ERS INDICATOR Filed June 27, 1932 March 19, 1935; A Q wlNTERs v '1,994,497

INDICATOR Filed June 27, 1932 2 Sheets-Sheet 2 E llllllll Patented Mar. 19, 1935 PATE orne-E 11. Claims.

.This ,invention relates. tol-.distance or dimension.l ftesting,...and. surface, testing.

This invention. hasutilitymespecially or` locating and checking variations, asfor positioning Work ...coaxially .for a succeeding operation,. as in.p1aners,. .shapersemilln and other`V machines.

, Referring to..the. drawingsi i Eig...,1 -is 4a fragmentary `Lshovving of anembodiment, of, the.,.invention betvveen .a. dri11 press bspindle ,and a Work .table for.such, press;

Eig2 -.is ,a .siden elevation .of 'the-device LoflFig. 1 in spread .position;

.Eig. 3..is aview.. of ,the .housing .Withihelid and contact .armremoved;

Fig. 4 is a section.onl.the.line-.,'IV-fIV,l'Fig.j.3;

Fig.. 6is.-an assemblyofthe device of `jFig. 1 for extension. for -increased dimensional. check- Fig.. '7.is .a fviewof .the strut or.Y auxiliarybracket assembly with the device f. 1ig 6;

Fig. .B .isa detail view of. a.contact attachment;

Eig. 9.shows .anembodimentcf ,the mounting of.. I 1,..assembled.with a1 1athe.-instead of a drill press;

10` .is .aj fragmentary view .of fthe device showing features VAof the -actuator wherein the `.transmission.lever. to '.the indicator.V lever operjateslinjthe plane of Vthelltlrirovvnwportions in- -stead otheing. lset'lthereto as 'shown in'Fig. 4;

.CjDrilL spindle 1.,is'shown inopposed relation'to Work tablel,2 upon which may be adjustably ,positionedarti'cle 3 of Work, say; havingL cylin- "drical innerface 4 which' it isf desired to., positionas -tosocket inlthe spindle'l in order that a tool operating 'thereon ymay be effective concentrically with. 'the surface. 4.

Tdthis end, extension' maysnugly seatin theseat 5. rThis extension1oradapte116,which .may .or .mayinot be tapered'isjshownas having 45 Ltapered. seat'iin which. may., protrude. stem.

T This adapter or substitute .i adapters per-mit: use j in Wide ranges. ofisizein` equipment. Thisi stem SAL'therebeyond' has? fork 'terminus'` 9 which. may have adjusting. screw 10 as a..pivot for.,coacting f() Witheye. 171.. vin two .ply cheek.; l2, sof, that.'.there is efcient-holding in`the ,adjustedmnsitionf ...this cheek..12..re1ative,1y. tothe.. mounting ,or ter- .minus..,9. v`'ilhis cheek, 12 is...shown providing a soc-ketl3 l.which ,ymayqbethrust fonirictional as- :155 .,semblywith.protruding., seat 14.on.p1ateor..mem

ber `lhaving lugportions 16, -17coactingin seats 18,19, of. main frame or housing 20Jshown as of general vfari ,form and provided Awith' '11d 21. 'Thislid 21 'has tongue 22 entering undercut seat.,23,between.the seats 18,19 atV each side ofjthe fanj free end portion. These lseatsin their undercut may be such that,by placingfthetip cf the1id,21 on theplate land vmovinglthe narrovv portions of the housing toward each, O thv.,er',. the .tongue 22 may be rockedintointeri-lock- 10 ing position in the Vundercut. seat'. 23, toward engagement at lugs24 of the lid 21 andadditional engagement at .seat 25. This rockingof 'thei lid 21- on its arc tip at theplate 15 asa fulcrum,

at starting, shifts the .tongue 22 ,into the seat 15 2,3. "This lid adjacent the seat`25` hasscrew`26 therethrough. for anchoring the' lid-at a .pos tion remote. from the seat23.

@This screw 26 `isin bushing. 27 having rivet assembly. 28 with the` housingl 2G. j Mounted .on 20 this pin` or bushingv 2,7 is sleeve '29. having; iiange ,30 seated snugly .against lever arm `31, with .which there is frictional holding or .gripping ,of` lever arm'j32,.,in thatthe bushing.'27pro vides lthefulcrurn. andthatjthis arm' .32..may be .25 a contacter. It lis thus clear that the, armi 32 y,rnaybe adjusted to various DOSitions uponjits ,pivot bearing. YThe lever .arm 31, remoteffrom Sthe arm'32,' has its free end offset' 33`V from` one side ,v thereof, and, spaced hackfrom such free ,30 end, oiset .34 from thegopposite edge thereof. ,These o`ffsets'33,V 34, arenormallyon opposite sides of' fulcrum35'f0r/the lever.;having arm *36' terminating Vin a, pair of,pointers"37 having terminally oppositely overhanging portions 38.

",The pair of pointers 37 are spacedi from each othertoembrace the memberorplate` 15.' This levers" 36, remote from .the 4pointersghas extension'39` providing a seat to be. engaged by spring 40 .as anexing member anchoredwith pin-'4l,.i40

riveted` in the housing 20' adjacentthe fulcrum pinf'27. Thisffiexing member or spring'j40- tends normally to hold the lever36 withv projections 42,;43, ir i contact respectively Vwith the oisets 33, 34.` It isv thus clear that as the arm S2-:is e.45 moved7 to actuate4 the leverarm 31,; there ef- `fectedarocking of the lever36 to causeJ the overhanging, portions of `the. pointers toi pass along over beveled region 44 ofthe housing 20 A andthe lid 21. The, movement. of'4 the lever`, 3650 -wi1lalways be thesanie under theiniiuencef movement ofthe arm 32, regardlessoi"l thejdirection of the movement ,ofthe lever, 31. ,With the projection 42a .slightlygreaterdistance from ...the `fulcrum `v .than the projection 43, i -there 55 Afingers 56 fixed with the extension 59.

is compensation for the greater radial distance along the lever 31 from its fulcrum 30.

There is shown clearance 45 on each side of the member 15 for the pointers 37 and the overha-ngs 38 along the graduations 44 render such visible not only from the flat side of the housing or lid 21, but even looking from the end into or toward the beveled portions 44. Itis thus clear that readings may be readily had from different directions in locating the shifting of the pointer.

The arm 32 may be located in the contacting relation with the Work face or surface 4, even by shifting the housing 20, 2l, as to the forked extension or terminus 9. The swinging of the arm 32 as to the arm 31 may locate the pointer at a terminus or longer scale of graduations 44 and the variations in the contact device position checked, say by slow rotation of the spindle 1. The purpose is that by a position for thisindicator, the work 3 may be so located that the indicator pointer 37 may not shift. Ihe delicacy Vof this tool will be determined by the magnification extent.

As herein shown, with a scale of approximately 1` inch length, this may be a showing of, Say

20/1000 of an inch..

Inasmuch as this is a dimension testing tool, the range of its utility is of importance and this range may be not only in its mounting but in its adaptations. For small internal diameter work, theV housing may approximate parallelism with theface upon which the arm 32 is operated. Inasmuch as the tool may be a small device but still retain its accuracy for large dimensions, occasion may4 arise to act upon work 46 of much greater diameter than the Work 3.

To this end, from the spindle 1 adapter 6 may receive in its set up tapered stem 8 from tting 47 having transverse seat 48 therein to receive Vrod 49 while knurled screw 50 in this tting 47 may coact as a Yset screw against rod 49 and hold such rod in adjustable radial position. Ihis rod 49may have transverse seat 52 to receive tapered stem 53 of the adapter coacting fitting .9.

Supplementally, the housing itself may'have an extension in conjunction with or independent of this bar extension 49. In the instance that the .bar extension 49 were sufficient, the device would coact as in the showing of Fig. 1. In the instance the bar extension were omitted and the supplemental device used, the connection would be as at the spindle in the Fig. 1 with the extension as shown in Fig. 6. To this end, lever arm 32 has its enlarged terminus 54 shown in section in Fig. 11 to be abutted by seat 55 as a flat end, similar `diameter portion of the extension 59 forming a terminus for the extension 59. At this assemblyY this terminus 54 is engaged by opposing spring These fingers 56 have beads 57 wedging into the opposing seats or chamfered portions 58. This provides asnug coupling for extension 579 snugly fit- Y ting but readily reciprocable as having a sliding fit in bracket 60. l

The friction of this bracket 60 is normally overcome by compression spring 61 acting on collar 62, beyond Vwhich there is contact terminus or Working face 63 of this extension. 'I'his spring 61 normally relieves the device of operating tension or resistance from friction so that the tool may be sensitive in response to the Contact face 63 as acting upon the Work 46. In order tof maintain location for this bracket 60 relatively to the Y housing 20, 21, there is shown member 64 having coacting rib seat fitting 65 with member 66 andv thus providing a telescopic or adjustable fric-` tion such as a neat assembly with the indications visible. In fact, they are no more obscured by this device than by the attachment at the plate 15. Furthermore, this bracket, instead of being a guide for the extension rod 59, may serve as a mounting for the housing in lieu of the mounting at plate 15.

vUpon occasion, the link 32 may be provided with seat 74 for replaceable contactor 75 of a dimension for reaching into locations in `special work. In fact, kthis may be a substitute contactor terminus for the particular type of contactor Y used.

` Instead of thel lever 31 being provided Withloifsets 33, 34, and thereby having its coaction with the pointer lever 36 from the lever 31, the contacting may be in the plane of the lever 3,1' by having the lever 31 provided with terminal cutaway portion as seat 76 (Fig. 10) for the projecv:

tion 42 in providing a seat for the projection 43.

In the instance wherein the work is rotary and the tool to be stationary as in a lathe or planingy machine, the devicemay be assembled as to xture 78 and act upon work 80 (Fig.` 9).

Theindicator may also be held by screw clamp and nut 68, 69, 70, to do this same work from a.

tool post, or to be held asrby a height gauge or other instrument or machine. v

What is claimed and it is desired to secure by Letters Patent is:

` 1. A measuring instrument comprisinga main the frame, an indicator mounted by the frame including a pointer bent back on the main frame away from the extension, and graduations relatively to and over. which the bent back portion of the pointer is'movable, a throw-multiplying actuator for the indicator embodying said pointer as a first lever having a fulcrum, 'a secondlever having a relativelyY remote fulcrum, said second Vlever extending past the fulcrum ofthe rstlever, there being offsets from each lever toward the other forming .coacting vseats on opposite sides of said fulcrum of the first lever out fof the lplane of each lever and between the planes of said levers, said main frame widening .between the fulcrato house the second lever in one angular range and having denite increase in the relative widening toward the extension froml the adjacent fulcrum for housing in an increased angular range.

2. A Vmeasuring instrument embodying a main frame, an indicator mounted thereby including a pointer and graduations Arelativelygto, which the pointer is movable, a lever in said frame for acting on said pointer, an arm frictionally connected to the lever remote from the pointer for lthe rsty lever n movement with the lever, said arm having a seat exterior of the frame, and a reciprocable contactor demountably engaging said seat.

3. A measuring instrument embodying a main frame, an indicator` mounted thereby including frame, an extension of plate form anchored in a pointer and gra'duations relatively to which the pointer is movable, a lever in said frame for pointer is movable, a levery in said frame forl acting on said pointer, an arm frictionally connected to theleverV for movement therewith, vsaidV arm having a seat, a reciprocablel contacter eX- tension from said seat, and an adjustable telescopic guide from the frame for the extension.

5. A measuring instrument comprising a main frame, an indicator mounted thereby including a pointer'- -and graduations relatively to which the pointer is movable, said frame embodying a housing having undercut seat means adjacent the pointer, and a detachable lid having means interlocking with said seat means, said interlocking means comprising a tongue complementary to saidseat means. Y

6. An indicator embodying a twin pointer, a housing for the pointer having undercut seat means, a lid having means rockable into inter' locking position with said seat means, said interlocking means comprising a tongue complementary to said seat means. Y

7. In an instrument comprising a main frame provided with graduations, a pair of pointers and an arm, the combination of an adapter mounting protruding from the main frame between the pair of pointers, the indicating portions `of the pointers overhanging the graduations as locatedon opposite sides of the main frame and spaced by the mounting, cooperating connecting means between the arm and pointers, a reciprocable contactor, a spring` normally urging the contacter in one direction, main frame embracing means, and a guide for the contactor connected'to said embracing means, saidr guide cooperating with said spring. i

8. In an instrument comprising a mainframe provided with graduations, a pair of ypointers and an arm, the combination of an adapter mounting protruding from the main frame between the pair of pointers, the indicating portions of the pointers overhanging thegraduations as located on opposite sides of the main frame and spaced by the mounting, cooperating connecting means between the armand pointers, a reciprocable contactora spring normally urging the contacter in one direction, main frame embrac- ,ing means, a guide for the contacter connected tosaid embracing means, said guide cooperating with said spring, and extensible elements between the embracing means and guide.

9. In a measuring instrument comprising a main frame provided with graduations, van arm and a pair ofV pointers remotefrom the arm, the combination of an adapter mounting protruding from the main frame between the pointers and graduations, cooperating connecting means in the main frame between the arm and pointers, a reciprocable contactor connected to operate the arm, a guide for the contactor, and a mounting for the guide having connection to the exterior of the main frame.v

Y 10. In a measuring instrument comprising a main frame provided with graduations, an arm and a 4pair of pointers remote from the arm, the combination of an adapter mounting protruding from the main frame between the pointers and graduations, cooperating connecting means in the main frame between the arm and and pointers, a reciprocable contactor, a detachable hinge connection between the contacter and arm, and a` guide for the contactor having adjustable connection to the main frame.

11. In a measuring instrument comprising a main frame provided with graduations, an arm and a pair of pointers remote fromV the arm, the

combination of an adapter mounting protruding from the main frame between the pointers and graduations, and cooperatingv connecting means in the main frame between the arm and pointers, said mounting including arpair of parallel stems, and a connecting Vbar therebetween.

. ALFRED G. WINTERS. 

